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2 years ago

If everyone on the planet used the same amount of resources as an average American, what percent of the Earth would

Biology

1 answer:

matrenka [14]2 years ago

5 0

Answer:

D. 200%

Explanation:

While Americans constitute the 5% of the world population, they use around the 24% of the world's energy.

Then, if the 100% of the population were like the Americans, we have:

5%*x = 100%

x = 100%/5% = 20

the whole population is 20 times the population of the US, then the total energy used is 20 times the energy used in the US.

Then the energy that the 100% of the population would use is equal to:

20*24% = 480%

So we actually would need like 5 Earths.

The option is 200%

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irinina [24]

Answer:

Continuous pumping of water causes drawdown. The water table lowers rapidly.

Explanation:

Water table is the level below which the ground is saturated with water.

During rainfall the runoff water percolates into the ground through the gap in the soil particles and the water table is recharged.

But when gallons of water are pumped continuously it leads to a drastic reduction in the water table because, water from the surrounding aquifers move towards the place where the vacuum is created by pumping.

To prevent this, the groundwater should be recharged and over drawing should be avoided.

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3 years ago

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3 years ago

Which statement is the best physical description of a gene? A chromosome is a segment of a gene. Genes carry many chromosomes. A

Sergio039 [100]

Answer:

The correct option is C. A gene is a specific segment of DNA on a chromosome

Explanation:

Option A is false because a gene is a segment on a chromosome.

Option B is false because a chromosome carries many genes.

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Option C is correct because there are many genes present on a single chromosome. Each gene carries a segment of DNA. The position of a gene on the chromosome is known as its loci.

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3 years ago

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3 years ago

What does it mean when we say that DNA replication is semiconservative ?

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Answer:

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3 years ago